The most important development of the early stone age was the ability to communicate through art. select the best answer from the choices provided

In which research method does a researcher change the value of one variable to determine how the change affects another variable? a. experiment b. observational research c. survey d. case study

During he 1840s, more americans than british settled in the oregon country. how do you think this settlement influenced negotiations with the british over the territory

This territory was the site of numerous spanish missions but was severely depopulated in the 17th century by infectious disease and warfare with other indian tribes